# Host Scanning

### Nmap

```bash
# -Pn: Skip host discovery
# --open: Show only open ports
# -vvv: Verbose
nmap -p- -Pn --open -vvv 10.10.10.100

# -sC: Runs Nmap default scripts
# -sV: Service Discovery and gets Service Versions
sudo nmap -p 22,80 -sC -sV 10.10.10.100

# -sU: Scans UDP Ports
# --reason: Mentions reason why it thinks this port is open
# --version-intensity: Controls how aggressively Nmap tries version detection (0 is low)
# --min-rate: Forces Nmap to send at least 1300 packets per second (speeds scanning)
# --max-retries: Limits retransmissions to 1 retry (default is 10)
# -top-ports: Scans the top 1000 most common ports (based on frequency data)
nmap -sU -sV -Pn -vv --reason --version-intensity 0 --min-rate 1300 --max-retries 1 -top-ports 1000 10.10.10.100

# Provide a list of potential vulnerabilities (https://nmap.org/nsedoc/categories/vuln.html)
nmap -p22,25,80,445 -script=vuln 10.10.10.100

# Typical Scan to run once you pivoted and have access to internal AD machines
nmap -p- -T4 -v 10.10.10.100 -oN nmap/internal_host_1.log
nmap -Pn -v -p- -sC -sV --open 10.10.10.100 -oN nmap/internal_host_2.log
```


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